I have a problem with my new Distributed File System: If a user enters \\DOMAIN\dfs\group\﻿ in Windows Explorer, he gets to see the Folder he has access to. After opening one of these folders, he can create new folders within this folder without a problem.

Now I assigned \\DOMAIN\dfs\group\ to a network drive ("S"). If the same user opens up "S" and the same folder again, he cannot create new folders or files anymore...